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CVE-2004-2652

HighPublished

The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows remote attackers to...

Published: Dec 18, 2005
Updated: Aug 8, 2024
Assigning CNA: mitre
Evidence observed: Dec 22, 2004

Primary CVSS

7.8/ 10High

nvd · CVSS 2.0

AV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS probability estimate

11.2%

Moderate · next 30 days

Percentile: 95.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows remote attackers to cause a denial of service (crash) via packets with invalid TCP/IP options, which trigger a null dereference.

Sources

Snort 2.1/2.2 - DecodeTCPOptions Remote Denial of Service (1)Exploit
Marcin Zgorecki · linux · Dec 22, 2004
Snort 2.1/2.2 - DecodeTCPOptions Remote Denial of Service (2)Exploit
Antimatt3r · linux · Dec 22, 2004

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